java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:22:21,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:22:21,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:22:22,005 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:22:22,006 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:22:22,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:22:22,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:22:22,010 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:22:22,012 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:22:22,013 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:22:22,014 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:22:22,014 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:22:22,015 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:22:22,016 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:22:22,017 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:22:22,018 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:22:22,019 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:22:22,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:22:22,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:22:22,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:22:22,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:22:22,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:22:22,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:22:22,035 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:22:22,036 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:22:22,037 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:22:22,037 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:22:22,038 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:22:22,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:22:22,069 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:22:22,070 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:22:22,070 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:22:22,070 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:22:22,070 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:22:22,070 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:22:22,071 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:22:22,075 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:22:22,075 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:22:22,075 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:22:22,075 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:22:22,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:22:22,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:22:22,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:22:22,077 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:22:22,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:22:22,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:22:22,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:22:22,077 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:22:22,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:22:22,078 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:22:22,078 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:22:22,078 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:22:22,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:22:22,079 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:22:22,080 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:22:22,080 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:22:22,081 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:22:22,081 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:22:22,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:22:22,081 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:22:22,081 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:22:22,081 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:22:22,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:22:22,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:22:22,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:22:22,150 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:22:22,150 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:22:22,151 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-11-07 03:22:22,216 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/702e818bf/b0201584621942618cc762b5fb6705aa/FLAG9cfb5ef63 [2018-11-07 03:22:23,036 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:22:23,037 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-11-07 03:22:23,077 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/702e818bf/b0201584621942618cc762b5fb6705aa/FLAG9cfb5ef63 [2018-11-07 03:22:23,098 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/702e818bf/b0201584621942618cc762b5fb6705aa [2018-11-07 03:22:23,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:22:23,115 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:22:23,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:22:23,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:22:23,121 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:22:23,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:22:23" (1/1) ... [2018-11-07 03:22:23,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad74b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:23, skipping insertion in model container [2018-11-07 03:22:23,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:22:23" (1/1) ... [2018-11-07 03:22:23,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:22:23,326 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:22:25,040 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:22:25,045 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:22:25,752 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:22:25,787 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:22:25,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25 WrapperNode [2018-11-07 03:22:25,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:22:25,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:22:25,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:22:25,790 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:22:25,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:22:26,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:22:26,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:22:26,203 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:22:26,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... [2018-11-07 03:22:26,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:22:26,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:22:26,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:22:26,503 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:22:26,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:22:26,572 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:22:26,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:22:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:22:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 03:22:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 03:22:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 03:22:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 03:22:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:22:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:22:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:22:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:22:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:22:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:22:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:22:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:22:38,208 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:22:38,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:22:38 BoogieIcfgContainer [2018-11-07 03:22:38,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:22:38,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:22:38,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:22:38,215 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:22:38,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:22:23" (1/3) ... [2018-11-07 03:22:38,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd4b53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:22:38, skipping insertion in model container [2018-11-07 03:22:38,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:22:25" (2/3) ... [2018-11-07 03:22:38,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd4b53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:22:38, skipping insertion in model container [2018-11-07 03:22:38,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:22:38" (3/3) ... [2018-11-07 03:22:38,219 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label53_true-unreach-call.c [2018-11-07 03:22:38,230 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:22:38,243 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:22:38,266 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:22:38,332 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:22:38,332 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:22:38,332 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:22:38,333 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:22:38,333 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:22:38,333 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:22:38,333 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:22:38,333 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:22:38,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 03:22:38,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-07 03:22:38,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:22:38,409 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:22:38,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:22:38,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:22:38,420 INFO L82 PathProgramCache]: Analyzing trace with hash 403353444, now seen corresponding path program 1 times [2018-11-07 03:22:38,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:22:38,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:22:38,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:22:38,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:22:38,485 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:22:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:22:38,914 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:22:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:22:39,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:22:39,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:22:39,035 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:22:39,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:22:39,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:22:39,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:22:39,062 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 03:22:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:22:47,912 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-11-07 03:22:47,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:22:47,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-07 03:22:47,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:22:47,949 INFO L225 Difference]: With dead ends: 3093 [2018-11-07 03:22:47,950 INFO L226 Difference]: Without dead ends: 1971 [2018-11-07 03:22:47,961 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:22:47,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-11-07 03:22:48,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-11-07 03:22:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-11-07 03:22:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-11-07 03:22:48,154 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 38 [2018-11-07 03:22:48,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:22:48,155 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-11-07 03:22:48,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:22:48,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-11-07 03:22:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-07 03:22:48,172 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:22:48,172 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:22:48,173 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:22:48,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:22:48,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1014320268, now seen corresponding path program 1 times [2018-11-07 03:22:48,174 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:22:48,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:22:48,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:22:48,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:22:48,178 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:22:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:22:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:22:48,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:22:48,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:22:48,641 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:22:48,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:22:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:22:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:22:48,643 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-11-07 03:23:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:23:00,153 INFO L93 Difference]: Finished difference Result 5627 states and 10356 transitions. [2018-11-07 03:23:00,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:23:00,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-11-07 03:23:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:23:00,184 INFO L225 Difference]: With dead ends: 5627 [2018-11-07 03:23:00,184 INFO L226 Difference]: Without dead ends: 3676 [2018-11-07 03:23:00,193 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:23:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2018-11-07 03:23:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3643. [2018-11-07 03:23:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2018-11-07 03:23:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5987 transitions. [2018-11-07 03:23:00,305 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5987 transitions. Word has length 121 [2018-11-07 03:23:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:23:00,305 INFO L480 AbstractCegarLoop]: Abstraction has 3643 states and 5987 transitions. [2018-11-07 03:23:00,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:23:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5987 transitions. [2018-11-07 03:23:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-07 03:23:00,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:23:00,319 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:23:00,319 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:23:00,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:23:00,322 INFO L82 PathProgramCache]: Analyzing trace with hash -504039204, now seen corresponding path program 1 times [2018-11-07 03:23:00,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:23:00,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:00,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:23:00,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:00,323 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:23:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:23:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:23:00,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:23:00,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:23:00,640 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:23:00,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:23:00,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:23:00,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:23:00,642 INFO L87 Difference]: Start difference. First operand 3643 states and 5987 transitions. Second operand 5 states. [2018-11-07 03:23:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:23:10,363 INFO L93 Difference]: Finished difference Result 10948 states and 18497 transitions. [2018-11-07 03:23:10,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:23:10,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-11-07 03:23:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:23:10,415 INFO L225 Difference]: With dead ends: 10948 [2018-11-07 03:23:10,417 INFO L226 Difference]: Without dead ends: 7311 [2018-11-07 03:23:10,432 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:23:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7311 states. [2018-11-07 03:23:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7311 to 7121. [2018-11-07 03:23:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7121 states. [2018-11-07 03:23:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7121 states to 7121 states and 10911 transitions. [2018-11-07 03:23:10,648 INFO L78 Accepts]: Start accepts. Automaton has 7121 states and 10911 transitions. Word has length 137 [2018-11-07 03:23:10,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:23:10,648 INFO L480 AbstractCegarLoop]: Abstraction has 7121 states and 10911 transitions. [2018-11-07 03:23:10,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:23:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 7121 states and 10911 transitions. [2018-11-07 03:23:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 03:23:10,652 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:23:10,652 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:23:10,653 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:23:10,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:23:10,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1493608594, now seen corresponding path program 1 times [2018-11-07 03:23:10,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:23:10,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:10,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:23:10,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:10,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:23:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:23:11,002 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:23:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:23:11,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:23:11,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:23:11,151 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:23:11,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:23:11,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:23:11,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:23:11,153 INFO L87 Difference]: Start difference. First operand 7121 states and 10911 transitions. Second operand 6 states. [2018-11-07 03:23:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:23:21,778 INFO L93 Difference]: Finished difference Result 19738 states and 31215 transitions. [2018-11-07 03:23:21,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:23:21,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-11-07 03:23:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:23:21,857 INFO L225 Difference]: With dead ends: 19738 [2018-11-07 03:23:21,858 INFO L226 Difference]: Without dead ends: 12623 [2018-11-07 03:23:21,900 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:23:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12623 states. [2018-11-07 03:23:22,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12623 to 12416. [2018-11-07 03:23:22,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12416 states. [2018-11-07 03:23:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12416 states to 12416 states and 17988 transitions. [2018-11-07 03:23:22,249 INFO L78 Accepts]: Start accepts. Automaton has 12416 states and 17988 transitions. Word has length 174 [2018-11-07 03:23:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:23:22,250 INFO L480 AbstractCegarLoop]: Abstraction has 12416 states and 17988 transitions. [2018-11-07 03:23:22,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:23:22,250 INFO L276 IsEmpty]: Start isEmpty. Operand 12416 states and 17988 transitions. [2018-11-07 03:23:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-11-07 03:23:22,258 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:23:22,258 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:23:22,258 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:23:22,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:23:22,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1047575411, now seen corresponding path program 1 times [2018-11-07 03:23:22,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:23:22,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:22,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:23:22,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:22,263 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:23:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:23:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:23:22,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:23:22,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:23:22,826 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:23:22,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:23:22,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:23:22,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:23:22,827 INFO L87 Difference]: Start difference. First operand 12416 states and 17988 transitions. Second operand 6 states. [2018-11-07 03:23:37,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:23:37,228 INFO L93 Difference]: Finished difference Result 42951 states and 69468 transitions. [2018-11-07 03:23:37,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 03:23:37,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2018-11-07 03:23:37,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:23:37,395 INFO L225 Difference]: With dead ends: 42951 [2018-11-07 03:23:37,395 INFO L226 Difference]: Without dead ends: 30541 [2018-11-07 03:23:37,494 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:23:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30541 states. [2018-11-07 03:23:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30541 to 30295. [2018-11-07 03:23:38,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30295 states. [2018-11-07 03:23:38,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30295 states to 30295 states and 43915 transitions. [2018-11-07 03:23:38,734 INFO L78 Accepts]: Start accepts. Automaton has 30295 states and 43915 transitions. Word has length 196 [2018-11-07 03:23:38,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:23:38,735 INFO L480 AbstractCegarLoop]: Abstraction has 30295 states and 43915 transitions. [2018-11-07 03:23:38,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:23:38,736 INFO L276 IsEmpty]: Start isEmpty. Operand 30295 states and 43915 transitions. [2018-11-07 03:23:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-07 03:23:38,743 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:23:38,744 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:23:38,744 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:23:38,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:23:38,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1056237497, now seen corresponding path program 1 times [2018-11-07 03:23:38,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:23:38,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:38,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:23:38,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:38,746 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:23:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:23:39,084 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:23:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:23:39,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:23:39,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:23:39,547 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:23:39,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:23:39,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:23:39,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:23:39,548 INFO L87 Difference]: Start difference. First operand 30295 states and 43915 transitions. Second operand 6 states. [2018-11-07 03:23:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:23:50,683 INFO L93 Difference]: Finished difference Result 73835 states and 115996 transitions. [2018-11-07 03:23:50,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:23:50,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-11-07 03:23:50,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:23:50,927 INFO L225 Difference]: With dead ends: 73835 [2018-11-07 03:23:50,927 INFO L226 Difference]: Without dead ends: 43546 [2018-11-07 03:23:51,042 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:23:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43546 states. [2018-11-07 03:23:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43546 to 43233. [2018-11-07 03:23:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43233 states. [2018-11-07 03:23:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43233 states to 43233 states and 61314 transitions. [2018-11-07 03:23:52,201 INFO L78 Accepts]: Start accepts. Automaton has 43233 states and 61314 transitions. Word has length 219 [2018-11-07 03:23:52,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:23:52,202 INFO L480 AbstractCegarLoop]: Abstraction has 43233 states and 61314 transitions. [2018-11-07 03:23:52,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:23:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 43233 states and 61314 transitions. [2018-11-07 03:23:52,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-11-07 03:23:52,213 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:23:52,214 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:23:52,214 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:23:52,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:23:52,215 INFO L82 PathProgramCache]: Analyzing trace with hash 342183432, now seen corresponding path program 1 times [2018-11-07 03:23:52,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:23:52,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:52,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:23:52,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:23:52,216 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:23:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:23:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:23:52,591 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:23:52,592 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:23:52,593 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-11-07 03:23:52,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3257], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 03:23:52,703 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:23:52,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:23:58,307 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:23:58,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:23:58,864 INFO L272 AbstractInterpreter]: Visited 111 different actions 111 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 03:23:58,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:23:58,908 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:24:03,464 INFO L227 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 71.44% of their original sizes. [2018-11-07 03:24:03,464 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:24:05,181 INFO L415 sIntCurrentIteration]: We unified 242 AI predicates to 242 [2018-11-07 03:24:05,182 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:24:05,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:24:05,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-07 03:24:05,183 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:24:05,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 03:24:05,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 03:24:05,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-07 03:24:05,185 INFO L87 Difference]: Start difference. First operand 43233 states and 61314 transitions. Second operand 11 states. Received shutdown request... [2018-11-07 03:26:04,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 03:26:04,161 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:26:04,168 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:26:04,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:26:04 BoogieIcfgContainer [2018-11-07 03:26:04,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:26:04,171 INFO L168 Benchmark]: Toolchain (without parser) took 221057.98 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 343.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:26:04,172 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:26:04,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2672.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:26:04,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 412.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:26:04,175 INFO L168 Benchmark]: Boogie Preprocessor took 299.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2018-11-07 03:26:04,182 INFO L168 Benchmark]: RCFGBuilder took 11707.59 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 170.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 6.2 MB). Peak memory consumption was 675.9 MB. Max. memory is 7.1 GB. [2018-11-07 03:26:04,182 INFO L168 Benchmark]: TraceAbstraction took 205957.38 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 173.6 MB. Max. memory is 7.1 GB. [2018-11-07 03:26:04,189 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2672.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 412.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 299.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11707.59 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 170.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 6.2 MB). Peak memory consumption was 675.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205957.38 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 173.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while BasicCegarLoop was constructing difference of abstraction (43233states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (13055 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 205.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 186.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2929 SDtfs, 23559 SDslu, 3033 SDs, 0 SdLazy, 34758 SolverSat, 9005 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 131.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 302 GetRequests, 248 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43233occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9959949141767322 AbsIntWeakeningRatio, 0.1115702479338843 AbsIntAvgWeakeningVarsNumRemoved, 35.896694214876035 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 1003 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1128 NumberOfCodeBlocks, 1128 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1121 ConstructedInterpolants, 0 QuantifiedInterpolants, 922593 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 222/316 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown